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Finding the Fourth Proportional to 372,645.69, 514,251.13 and 202,879.82

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Solution

The fourth proportional to 372,645.69, 514,251.13 and 202,879.82 is: 279,974.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,645.69 : 514,251.13 = 202,879.82 : x
  2. Step 2: Convert to fraction form
    372,645.69/514,251.13 = 202,879.82/x
  3. Step 3: Cross multiply
    372,645.69x = 514,251.13 × 202,879.82
  4. Step 4: Simplify right side
    372,645.69x = 104,331,173,610.74
  5. Step 5: Solve for x
    x = 104,331,173,610.74/372,645.69
  6. Step 6: Final answer
    x = 279,974.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.